Will the part be exposed to the elements including cold, heat, wind and
Some resins perform very well under certain environmental conditions; others
will not. It is important to know the type of exposure a part will need to
What is the tensile strength requirement of the part? Will the part need to
fixable or rigid?
The answers to these questions will not only help determine the resin to be
used in the application, but it will also inform the quality department of the
performance characteristics that should be monitored and measured.
Will the part be exposed to chemical or corrosive materials?
There are plastic materials that are made specifically to withstand exposure
to harsh and corrosive chemicals. Because of these conditions, resin
manufacturers developed compounds that would meet rigid requirements. Often
these applications are found in military, industrial, and medical products.
Are there specific cosmetic requirements of the product design?
In the plastic injection molding industry, beauty is not just skin-deep, it
is at the core of the product design and development. At The Rodon Group, we
have had clients who required a very specific texture to their product. It had
to be consistent across their product line, so getting it right was not only key
to the product and future products, but to the brand.
What is the expected life-use of the part?
Some parts will only be in use for a particular period. Think of a printer
cartridge. These parts need to perform and last as long as the ink in the
cartridge. Longevity can be a huge variable in the functional design of a
product and its final specification. Knowing the total life span of the part can
have cost-saving impacts on the final part production.
What are the regulatory requirements of the part?
Products may need to meet certain food and medical safety requirements.
Anyone dealing with products marketed to children will also have specific
product requirements that need to be meet. Remember the lead-laden toys from
China? That incident not only prompted new regulations, but many companies using
overseas manufacturers had to install a full staff to monitor quality and
manufacturing practices in their offshore suppliers.